题目内容

铸造铝合金有()。

A. LY12
B. LE5
C. ZL14

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铝合金根据成分和工艺特点,可分为()和铸造铝合金。

ZL10是()合金

In my company, all employees are expected to have a________attitude towards their co-workers.

A. cooperation
B. corporation
C. cooperative
D. cooperate

London has _________ 7.6 hours of sunshine per day during May.

A. in average
B. on average
C. at average
D. for average

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